Question

What is the volume of a sample of oxygen at a pressure of 2.50 atm, if its volume is 3.15 L at 1.00 atm ? The temperature remains constant.

Answer 1

Given,

The temperature remains constant.

We solve this problem using the Boyle’s Law

{ { P }_{ 1 }{ V }_{ 1 }={ P }_{ 2 }{ V }_{ 2 } }

Volume of oxygen is 3.15 L at 1.00 atm.

Let ${ V }_{ 2 }$= 3.15 L and ${ P }_{ 2 }$= 1

Find the volume of oxygen at 2.50 atm

Let ${ P }_{ 1 }$ =2.50

${ { P }_{ 1 }{ V }_{ 1 }={ P }_{ 2 }{ V }_{ 2 } }$

${ { V }_{ 1 }= }\frac { { P }_{ 2 }{ V }_{ 2 } }{ { P }_{ 1 } }={ { V }_{ 1 }= }\frac { 3.15 }{ 2.5 } =1.26L$

The volume of a sample of oxygen is  1.26 L.